US5479564A - Method and apparatus for manipulating pitch and/or duration of a signal - Google Patents
Method and apparatus for manipulating pitch and/or duration of a signal Download PDFInfo
- Publication number
- US5479564A US5479564A US08/326,791 US32679194A US5479564A US 5479564 A US5479564 A US 5479564A US 32679194 A US32679194 A US 32679194A US 5479564 A US5479564 A US 5479564A
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- United States
- Prior art keywords
- signal
- windows
- signals
- window
- pitch
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
- G10L21/00—Processing of the speech or voice signal to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
- G10L21/04—Time compression or expansion
Abstract
Description
S.sub.i (t)=W(t)X(t=t.sub.i)
W(t)+W(t-L)=constant
W(t)=1/2+A(t) cos (180t/L+Φ(t)),
Y(t)=Σ.sub.i 'S.sub.i (t-T.sub.i)
(t.sub.i -t.sub.i-1)/(T.sub.i -T.sub.i-1),
S.sub.i (t)=W(t/L.sub.i)X(t-t.sub.i).
S.sub.i (t)=W(t/L.sub.i)X(t+t.sub.i)(-L.sub.i <t<0)
S.sub.i (t)=W(t/L.sub.i+1)X(t+t.sub.i)(0<t<L.sub.i+1).
S.sub.i (t)=W(t/L.sub.i)X(t+t.sub.i)(-L.sub.i <t<0)
S.sub.i (t)=W(t/L.sub.i+1)X(t+t.sub.i)(0<t<L.sub.i+1),
Y(t)=Σ.sub.i 'S.sub.i (t-T.sub.i)
Y(t)=Σ.sub.i 'S.sub.i (t-T.sub.i)
F=(Dt/T)-1,
Claims (28)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/326,791 US5479564A (en) | 1991-08-09 | 1994-10-20 | Method and apparatus for manipulating pitch and/or duration of a signal |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP91202044 | 1991-08-09 | ||
EP91202044 | 1991-08-09 | ||
US92486392A | 1992-08-03 | 1992-08-03 | |
US08/326,791 US5479564A (en) | 1991-08-09 | 1994-10-20 | Method and apparatus for manipulating pitch and/or duration of a signal |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US92486392A Continuation | 1991-08-09 | 1992-08-03 |
Publications (1)
Publication Number | Publication Date |
---|---|
US5479564A true US5479564A (en) | 1995-12-26 |
Family
ID=8207817
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US08/326,791 Expired - Lifetime US5479564A (en) | 1991-08-09 | 1994-10-20 | Method and apparatus for manipulating pitch and/or duration of a signal |
Country Status (4)
Country | Link |
---|---|
US (1) | US5479564A (en) |
EP (1) | EP0527527B1 (en) |
JP (1) | JPH05265480A (en) |
DE (1) | DE69228211T2 (en) |
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WO1998020482A1 (en) * | 1996-11-07 | 1998-05-14 | Creative Technology Ltd. | Time-domain time/pitch scaling of speech or audio signals, with transient handling |
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US5842172A (en) * | 1995-04-21 | 1998-11-24 | Tensortech Corporation | Method and apparatus for modifying the play time of digital audio tracks |
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US5933808A (en) * | 1995-11-07 | 1999-08-03 | The United States Of America As Represented By The Secretary Of The Navy | Method and apparatus for generating modified speech from pitch-synchronous segmented speech waveforms |
US5970440A (en) * | 1995-11-22 | 1999-10-19 | U.S. Philips Corporation | Method and device for short-time Fourier-converting and resynthesizing a speech signal, used as a vehicle for manipulating duration or pitch |
US6044345A (en) * | 1997-04-18 | 2000-03-28 | U.S. Phillips Corporation | Method and system for coding human speech for subsequent reproduction thereof |
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US6208960B1 (en) * | 1997-12-19 | 2001-03-27 | U.S. Philips Corporation | Removing periodicity from a lengthened audio signal |
US6290566B1 (en) | 1997-08-27 | 2001-09-18 | Creator, Ltd. | Interactive talking toy |
US6298322B1 (en) | 1999-05-06 | 2001-10-02 | Eric Lindemann | Encoding and synthesis of tonal audio signals using dominant sinusoids and a vector-quantized residual tonal signal |
US20010037202A1 (en) * | 2000-03-31 | 2001-11-01 | Masayuki Yamada | Speech synthesizing method and apparatus |
US6330538B1 (en) * | 1995-06-13 | 2001-12-11 | British Telecommunications Public Limited Company | Phonetic unit duration adjustment for text-to-speech system |
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US6421636B1 (en) * | 1994-10-12 | 2002-07-16 | Pixel Instruments | Frequency converter system |
US6470308B1 (en) * | 1991-09-20 | 2002-10-22 | Koninklijke Philips Electronics N.V. | Human speech processing apparatus for detecting instants of glottal closure |
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Citations (22)
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- 1992-07-31 EP EP92202372A patent/EP0527527B1/en not_active Expired - Lifetime
- 1992-08-06 JP JP4210295A patent/JPH05265480A/en active Pending
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EP0527527A2 (en) | 1993-02-17 |
DE69228211D1 (en) | 1999-03-04 |
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EP0527527A3 (en) | 1993-05-05 |
DE69228211T2 (en) | 1999-07-08 |
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